import store from '@/store'
import config from '@/config'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { toast, showConfirm, tansParams } from '@/utils/common'

let timeout = 10000
const baseUrl = config.baseUrl

const request = config => {
  const token = uni.getStorageSync('token');
  config.headers = config.headers || {};
  config.headers.token = token;
  
  // get请求映射params参数
  if (config.params) {
    let url = config.url + '?' + tansParams(config.params)
    url = url.slice(0, -1)
    config.url = url
  }
  
  return new Promise((resolve, reject) => {
    uni.request({
      method: config.method || 'get',
      timeout: config.timeout || timeout,
      url: (config.baseUrl || baseUrl) + config.url,
      data: config.data,
      header: config.headers,
      dataType: 'json'
    }).then(response => {
      let [error, res] = response;
      if (error) {
        toast('后端接口连接异常');
        reject('后端接口连接异常');
        return;
      }
      
      const code = res.data.code || 200;
      const msg = errorCode[code] || res.data.message || errorCode['default'];
      
      if (code === 401 || code === 501) {
        // showConfirm('登录状态已过期，您可以继续留在该页面，或者重新登录?').then(confirm => {
        //   if (confirm) {
            
        //   }
        // });
		toast(msg);
		uni.reLaunch({ url: '/pages/login' });
        reject('无效的会话，或者会话已过期，请重新登录。');
      } else if (code === 500) {
        if (msg === '缺少Token') {
          showConfirm('请登录！').then(confirm => {
            if (confirm) {
              uni.reLaunch({ url: '/pages/login' });
            }
          });
		  toast(msg);
		  uni.reLaunch({ url: '/pages/login' });
          reject('请登录。');
          return;
        }
        toast(msg);
        reject('500');
      } else if (code !== 200) {
        toast(msg);
        reject(code);
      } else {
        resolve(res.data);
      }
    }).catch(error => {
      let { message } = error;
      if (message === 'Network Error') {
        message = '后端接口连接异常';
      } else if (message.includes('timeout')) {
        message = '系统接口请求超时';
      } else if (message.includes('Request failed with status code')) {
        message = '系统接口' + message.substr(message.length - 3) + '异常';
      }
      toast(message);
      reject(error);
    });
  });
}

export default request